EXHIBIT 32.2

CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER

PURSUANT TO18 U.S.C. SECTION 1350,AS ADOPTED

PURSUANT TOSECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Protein Polymer Technologies, Inc. (the "Registrant") on Form 10-Q for the fiscal quarter ended June 30, 2008 as filed with the Securities and Exchange Commission on the date hereof (the "Report"), the undersigned hereby certifies, pursuant to 18 U.S.C. §1350, as adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the Registrant.

/s/ JAMES B. MCCCARTHY

James B. McCarthy

Interim Principal Financial Officer

August 19, 2008